Table 15: Site Electrical Wiring Guidelines for the Services
Gateway (continued)
GuidelineSite Wiring Factor
To reduce or eliminate the emission of RFI from your site wiring:
•
Use twisted-pair cable with a good distribution of grounding
conductors.
•
Use a high-quality twisted-pair cable with one ground conductor
for each data signal when applicable, if you must exceed the
recommended distances.
Radio Frequency
Interference (RFI)
Provide a properly grounded and shielded environment and use
electrical surge-suppression devices.
Strong sources of electromagnetic interference (EMI) can cause
the following damage:
•
Destroy the signal drivers and receivers in the device
•
Conduct power surges over the lines into the equipment, resulting
in an electrical hazard
NOTE: If your site is susceptible to problems with EMC, particularly
from lightning or radio transmitters, you may want to seek expert
advice.
Electromagnetic
Compatibility (EMC)
CAUTION: To comply with intrabuilding lightning/surge requirements, the
intrabuilding wiring must be shielded. The shielding for the wiring must be
grounded at both ends.
Related
Documentation
General Site Guidelines for Installing the SRX100 Services Gateway on page 24•
• Monitoring the SRX100 Services Gateway Power System on page 101
• SRX100 Services Gateway Electrical and Power Requirements on page 30
• SRX100 Services Gateway Power Specifications and Requirements on page 31
SRX100 Services Gateway Electrical and Power Requirements
This topic provides information on the factors you must consider while planning the
electrical wiring and power availability at your site. These requirements cover the following
areas:
•
Power specifications and requirements for the device
•
Electrical wiring guidelines for the device installation site
•
Power, connection, and power cord specifications for the device
•
Grounding guidelines and specifications for the device
Copyright © 2015, Juniper Networks, Inc.30
SRX100 Services Gateway Hardware Guide for B and H Model Numbers